This is the most overlooked step. Go back to the PDFcoffee page where you found the link. Many uploaders will include the password in the file description, often in small text.

Bookmark this article. The next time someone sends you a locked PDFCoffee link, send them one of the legal alternatives above instead. You will save them hours of frustration—and a potential virus.

Frequently, users download files from PDFCoffee only to find they are encrypted. There is no single "universal password" for files on the site; the password is set by the original uploader. How to Find the Password

If you are locked out of your own account, the process is straightforward. According to the PDFCoffee Password Recovery form, you can reset it by following these security guidelines: